n. a car or other vehicle following too closely on one’s bumper. (A reapplication of the term for a kind of adhesive sign stuck on a car bumber.) I can’t talk now, I’ve got a bumper sticker that’s taking all my attention.
n. the shock at seeing just how much something new, usually an automobile, costs as determined by looking at the price tag or sticker. I went to a car dealer today, and I am still suffering from sticker shock.